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In meiosis, the daughter cells differ fr...

In meiosis, the daughter cells differ from parent cell as well as amongst themselves due to

A

segregation, independent assortment and crossing over

B

segregation and crossing over

C

independent assortment and crossing over

D

segregation and independend assortment

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The correct Answer is:
B
The daughter cells differ from parent cell as well as amongst themselves due to the segregation and crossing over taking place in them. Meiosis-I brings gene recombinations and haploidy of number of chromosomes. Crossing over during pachytene produces new combinaton of genes and is the major source of new genetic variations in the sexually reproducing organisms.
Anaphase -I results in segregation of Mendelian factors, essential for sexual reproduction, it also introduces genetic variability.
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NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-CELL CYCLE AND CELL DIVISION-EXERCISE
  1. If a diploid cell is treated with colchicine, then it becomes

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  2. During karyokinesis, the spindle fibres get attached to condensing chr...

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  3. Crossing over in diploid organism is responsible for

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  4. A bacterium divides every 35 minutes. If a culture containing 10^(5) c...

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  5. During cell division in apical meristem nuclear membrane reappears in

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  6. How many mitotic divisions are needed for a single cell to make 128cel...

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  7. Which of the folliwng structure will not be common to mitotic cell of ...

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  8. The exchange of genetic material between chromatids of paired homologo...

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  9. Lampbrush chromosomes are visible

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  10. The point at which the polytene chromosomes appeart to be attached tog...

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  11. Meiosis is evolutionary significant because it results in

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  12. Best stage to observe shape, size and number of chromosome is

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  13. In salivary gland chromosomes/polytene chromosomes, pairing is

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  14. Meiosis II performs

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  15. Balbiani rings (puffs ) are sites of

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  16. Number of chromatids per chromosome at metaphase is

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  17. In meiosis, the daughter cells differ from parent cell as well as amon...

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  18. Mitotic anaphase differs from metaphase in possessing

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  19. A bivalent of meiosis i consists of

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  20. Meiosis-I is reductional division. Meiosis-II is equational division d...

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